Merge #123

123: Update setuptools to 46.3.0 r=duckinator a=pyup-bot


This PR updates [setuptools](https://pypi.org/project/setuptools) from **46.2.0** to **46.3.0**.



<details>
  <summary>Changelog</summary>
  
  
   ### 46.3.0
   ```
   -------

* 2089: Package index functionality no longer attempts to remove an md5 fragment from the index URL. This functionality, added for distribute 163 is no longer relevant.
* 2041: Preserve file modes during pkg files copying, but clear read only flag for target afterwards.
* 2105: Filter ``2to3`` deprecation warnings from ``TestDevelop.test_2to3_user_mode``.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/setuptools
  - Changelog: https://pyup.io/changelogs/setuptools/
  - Repo: https://github.com/pypa/setuptools
</details>



Co-authored-by: pyup-bot <github-bot@pyup.io>

setup.cfg

@@ -36,7 +36,7 @@ tests_require =
 # FIXME: This name seems wrong, but I can't think of a better one atm.
 build =
     pip==20.1
-    setuptools==46.2.0
+    setuptools==46.3.0
     wheel==0.34.2
 
 testing =